21098395

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{101}}^1\times {\mathrm{1019}}^1$

素因数の和:1166

約数の個数: 16

約数和(自身を含む): 26218080

約数和(自身を除く): 5119685

約数列:

[1, 5, 41, 101, 205, 505, 1019, 4141, 5095, 20705, 41779, 102919, 208895, 514595, 4219679, 21098395]

約数ペア:

[(1, 21098395), (5, 4219679), (41, 514595), (101, 208895), (205, 102919), (505, 41779), (1019, 20705), (4141, 5095)]